42866385 has 8 divisors (see below), whose sum is σ = 68586240. Its totient is φ = 22862064.

The previous prime is 42866381. The next prime is 42866389. The reversal of 42866385 is 58366824.

It is an interprime number because it is at equal distance from previous prime (42866381) and next prime (42866389).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42866385 - 2² = 42866381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42866381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428865 + ... + 1428894.

It is an arithmetic number, because the mean of its divisors is an integer number (8573280).

Almost surely, 2^42866385 is an apocalyptic number.

It is an amenable number.

42866385 is a deficient number, since it is larger than the sum of its proper divisors (25719855).

42866385 is a wasteful number, since it uses less digits than its factorization.

42866385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857767.

The product of its digits is 276480, while the sum is 42.

The square root of 42866385 is about 6547.2425493485. The cubic root of 42866385 is about 349.9765562529.

The spelling of 42866385 in words is "forty-two million, eight hundred sixty-six thousand, three hundred eighty-five".